Trapping of lattice polarons by impurities

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dc.creatorHague, J. P.
dc.creatorKornilovitch, P. E.
dc.creatorAlexandrov, A. S.
dc.date2008-05-16
dc.date.accessioned2026-07-07T10:17:21Z
dc.date.available2026-07-07T10:17:21Z
dc.descriptionWe consider the effects of single impurities on polarons in three-dimensions (3D) using a continuous time quantum Monte-Carlo algorithm. An exact treatment of the phonon degrees of freedom leads to a very efficient algorithm and we are able to compute the polaron dynamics on an infinite lattice using an auxiliary weighting scheme. The magnitude of the impurity potential, the electron-phonon coupling and the phonon frequency are varied. We determine the magnitude of the impurity potential required for polaron trapping. For small electron-phonon coupling the number of phonons increases dramatically on trapping. The polaron binding diagram is computed, showing that intermediate-coupling low-phonon-frequency polarons are localized by exceptionally small impurities.
dc.description4 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/0805.2556
dc.identifierhttp://arxiv.org/abs/0805.2556
dc.identifierPhys. Rev. B 78, 092302 (2008)
dc.identifierdoi:10.1103/PhysRevB.78.092302
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/173822
dc.subjectStrongly Correlated Electrons
dc.subjectSuperconductivity
dc.titleTrapping of lattice polarons by impurities
dc.typetext

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